view db/migrate/048_allow_null_version_effective_date.rb @ 1103:6d85e9ea961c bibplugin_bibtex

(dev commit) added a submit button; correctly posts the form's data. Started working on the create from bibtex action.

class AllowNullVersionEffectiveDate < ActiveRecord::Migration
  def self.up
    change_column :versions, :effective_date, :date, :default => nil, :null => true
  end

  def self.down
    raise IrreversibleMigration
  end
end